Final answer:
Duraflor® can remineralize early root carious lesions due to its fluoride content, which strengthens tooth enamel and has bacteriostatic properties. Its use is not limited to individuals in unfluoridated areas, and the information provided does not confirm if it causes unsightly stains.
Step-by-step explanation:
Duraflor®, a fluoride-containing product used in dental care, is capable of remineralizing early root carious lesions. Fluoride, being an active ingredient in many dental products, contributes to the prevention and control of tooth decay primarily by enhancing the remineralization process and making teeth more resistant to the acidic byproducts of oral bacteria. It works by incorporating into the hydroxyapatite of tooth enamel, strengthening it against acidity and is also known for its bacteriostatic properties which reduce enamel degradation. However, while some fluoride-containing products, such as stannous fluoride, are linked to surface stains on teeth, the specific side effects of Duraflor® regarding staining are not clearly stated in the given information. It is important to note that high levels of fluoride, whether from natural sources or excessive use of fluoride products, can lead to dental fluorosis.
Moreover, the effectiveness of fluoride does not depend on the fluoridation levels of a person's water supply, as it can benefit individuals regardless of the fluoride content of their local water source. Hence, the assertion that it should only be used in unfluoridated areas is inaccurate.